screw nut

noun

1. a nut threaded to receive a screw.

Word History and Origins

Origin of screw nut¹

First recorded in 1805–15

Example Sentences

“Every screw, nut and bolt at this place I helped choose, in one way or another. If you don’t like it, it’s essentially my fault.”

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In cutting threads with a tool in the front tool post the tool is set by moving the tool rest as usual, and at the end of the cut the cam lever serves to quickly withdraw the tool and lead screw nut so that the carriage can be run back.

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The lead screw nut h is a sectional nut, double ended, so that each nut will do for two pitches, by turning end for end in the apron. l is an adjustable stop which determines the position of the carriage in cutting off, facing, &c. k is an arm pivoted to the rear of the carriage and carrying three open dies like a bolt cutter head.

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In lathes not having a device for this purpose, the workman makes a chalk mark on the tail of the work driver, and another on the top of the lead screw gear, and by always moving the carriage back to the same point on the lathe bed, and engaging the lead screw nut when these two chalk marks are at the top of their paths of revolution, the tool will fall into its correct position and there will be no danger of cutting a double thread.

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It represents a piston head and piston rod secured together by means of a differential screw nut.

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